What is Yafen Chen's NPI number?

Yafen Chen's National Provider Identifier (NPI) is 1174401624, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Yafen Chen's specialty?

Yafen Chen is listed in the NPPES registry with a primary specialty of Acupuncturist (Other Service Providers).

Where is Yafen Chen located?

Yafen Chen's practice location on file with NPPES is 710 Lakeway Dr Ste 230, Sunnyvale, CA 94085-4046.

What is Yafen Chen's phone number?

The practice phone number listed in the NPPES registry for Yafen Chen is (408) 931-1109.

Is Yafen Chen's NPI active?

Yes — Yafen Chen's NPI (1174401624) is active in the NPPES registry as of the last update on 2025-08-23.

IndividualActive

Yafen Chen, ACUPUNCTURIST

NPI 1174401624 · Acupuncturist · Sunnyvale, CA

Yafen Chen, ACUPUNCTURIST is a Acupuncturist provider in Sunnyvale, CA (NPI 1174401624).

Provider details

NPI number: 1174401624
Entity type: Individual
Primary specialty: AcupuncturistOther Service Providers
Credential: ACUPUNCTURIST
Sex: Female
Sole proprietor: No
License: 20426 (CA)

Specialties & taxonomies

AcupuncturistPrimary171100000XLicense 20426 (CA)
Other Service Providers

Profile Score

Established profile(54/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

710 Lakeway Dr Ste 230

Sunnyvale, CA 94085-4046

Phone: (408) 931-1109

Fax: (415) 873-3288

Street-level locationGet directions

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Mailing address